Semi-Formal or After Five means that tuxes are not required, nor are long dresses. An evening wedding (after 6 PM) would still dictate dark suits for him, and a cocktail dress for her. Daytime semi-formal events mean a suit for him and an appropriate short dress or dressy suit for her. 0 [2 h. G% G7 o( p/ W! s" _晚上的Semi-Formal 7 r0 g" i! D8 ]3 }+ E女士:小礼服, 长礼服不必 " A$ u: ^. F( q$ x男士:深色西装, 领结,燕尾服不必。